chromebin - I apologize for the late response - I haven't been checking the forum in recent weeks. I think our solution was to increase the WiFi buffer sizes in the sdkconfig. We have implemented a large (> 32 devices) ESP-NOW network using ONLY broadcast packets - no "peer" connections. So far, it ...

We are running an ESP32-WROOM32 talking BLE to an iPad. (iPad is running our own App, written in Swift) When we connect to the iPad, the ESP32 gives the following warning on the serial console: I (3956468) GATTS_T: Unhandled property uuid 10498, for handle 143 Does anyone know what this is, or how t...

I have an ESP32-WROOM32 module talking BLE-GATT to an iPad, and ESP-NOW to several other ESP32 devices. After letting the ESP32 run overnight (with active BLE connection to iPad, and one connected ESP-NOW device), we had the following error on serial console. (We are using IDF: v3.2-dev-1385-g129d32...

Thank you! Using Timer Group 0 works much better than using esp_timer().

Are there any other subsystems that may be using Timer Group 0 that I should be aware of?

Also - does Timer Group 0 run on Core 0, or Core 1?

Also, it appears the ESP-NOW and/or WiFi libraries are running at a higher priority than the esp_timer task.

Is it possible to increase the priority of the esp_timer operation?

I have a control application that needs to run every 500 us (2 kHz). I am using esp_timer() at 500 us, to run the control code. (I send a semaphore to the Control Task each time the esp_timer interrupt fires.) . I have the Control Task pinned to Core 1. I also am using ESP-NOW (WiFi) on Core 0. My p...

Can someone from Espressif provide recommendation as to the differences between the ESP32-WROOM-32 and 32D parts? We are preparing to order production volumes, and it is not clear to me what the differences are. We have been using the ESP32-WROOM-32 for development. But I see that the 32D is a newer...

You are correct - my math was faulty. A 1 Mbps bus has a speed of 1 bit every microsecond. So a CAN frame will take approximately 128 us. Seems I was off by a factor of 10.

I have 6 ESP32 devices broadcasting ESP-NOW (WiFi) packets to a "master" ESP32 device. I am using the standard ESP-NOW function esp_now_send() with the "broadcast_mac" address. My little network is connectionless. The devices ignore messages not destined to them. My "master" device simply listens fo...

Has anyone else had an issue like this? I am using ESP-NOW on Adafruit Feather Huzzah32 boards . (ESP32) I am doing a simple broadcast esp_now_send() to 2 receivers about a meter away. I get the send callback for every transmit, but not every packet is received by the other 2 devices. I am questioni...